World No 1 Serena Williams and Maria Sharapova are through to the third round of the Australian Open after comprehensive wins on Wednesday.
Williams added a rare around-the-net shot to her repertoire as she steamrolled Taiwan's Hsieh Su-wei 6-1 6-2.
The six-time Melbourne Park winner and defending champion is aiming to equal Steffi Graf's Open-era record of 22 Grand Slam titles over the next two weeks.
She now next faces Russian Daria Kasatkina, with a potential quarter-final clash against arch-rival Sharapova awaiting.
Williams said: "She was definitely a tricky opponent, but it was a good match for me to play someone like that. I needed that."
Williams said the first around-the-net she has ever played was a highlight of the match.
"I don't know if I have done that," she added. "I could be wrong, but I definitely don't remember ever hitting a shot like around the net. So it was good."
Earlier, Sharapova had become the first player to advance to the third round at the when she beat Aliaksandra Sasnovich, of Belarus, 6-2 6-1.
Sharapova's match on Rod Laver Arena was one of only three that began on schedule - the other two were also in stadiums with covered roofs - after light rain delayed play for just over an hour on outside courts.
The fifth-seed's only stumbles came when she her had her service broken twice in the opening set, including when she held two set points while serving at 5-1.
Sharapova, who won the title in 2008 and has reached three other finals, completed the win in 71 minutes and will next play either Lauren Davis, of the United States, or Magadalena Rybarikova, of Slovakia.
We will bring you all the news, views, reaction and opinion from the Australian Open throughout the next fortnight.